Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 032047 AAA
CLMLND

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
239 PM MST FRI DEC 01 2023

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LANDER FOR THE MONTH OF
NOVEMBER 2023...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF NOVEMBER 2023 WILL BE
AVAILABLE IN APPROXIMATELY 60 DAYS FROM THE NATIONAL CENTERS FOR
ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO-
WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE
INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...LANDER WAS WARMER AND WETTER THAN NORMAL IN NOVEMBER....

THE AVERAGE TEMPERATURE FOR LANDER IN NOVEMBER WAS 34 DEGREES WHICH
WAS 1.9 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE MONTH WAS
62 DEGREES ON THE 6TH. THE COLDEST TEMPERATURE WAS 1 DEGREE BELOW
ZERO ON THE 26TH, 27TH, 28TH AND 29TH. NO TEMPERATURE RECORDS WERE
BROKEN THIS MONTH.

PRECIPITATION FOR THE MONTH WAS 1.26 INCHES...WHICH IS 162 PERCENT
OF NORMAL. THE WETTEST 24-HOUR PERIOD WAS THE 23RD-24TH WHEN 1.21
INCHES OF PRECIPITATION FELL. THE 23RD HAD 1.03 INCHES AND BROKE THE
1992 RECORD OF 0.54.

SNOWFALL FOR THE MONTH WAS 22.9 INCHES WHICH IS 216 PERCENT OF
NORMAL. IT WAS THE 5TH SNOWIEST NOVEMBER ON RECORD. THE SNOWIEST 24-
HOUR PERIOD WAS ON THE 23RD WHEN 18.8 INCHES FELL. IT BROKE THE 1992
RECORD OF 10.6 INCHES. THE HIGHEST WIND GUST OCCURRED ON THE 11TH
WITH 48 MPH FROM THE WEST.

...THE LANDER WY CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             71   11/01/2014
 LOW             -18   11/13/2014
                       11/23/1985
                       11/15/1978
HIGHEST           62   11/06
LOWEST            -1   11/27
                       11/28
                       11/29
AVG. MAXIMUM    46.0               44.3     1.7
AVG. MINIMUM    22.0               19.9     2.1
MEAN            34.0               32.1     1.9
DAYS MAX >= 90     0
DAYS MAX <= 32     7
DAYS MIN <= 32    24
DAYS MIN <= 0      4

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.37   1983
 MINIMUM        0.00   1939
TOTALS          1.26               0.78    0.48     1.07
DAILY AVG.      0.04               0.03    0.01
DAYS >= .01        3
DAYS >= .10        2
DAYS >= .50        1
DAYS >= 1.00       1
GREATEST
 24 HR. TOTAL   1.21   11/23 TO 11/24
 STORM TOTAL    1.25

SNOWFALL (INCHES)
TOTALS          22.9               10.6    12.3
SINCE 7/1       24.2               22.6     1.6
SNOWDEPTH AVG.     4
DAYS >= 1.0        2

DEGREE DAYS
HEATING TOTAL    925                987     -62
 SINCE 7/1      1608               1827    -219
COOLING TOTAL      0                  0       0
 SINCE 1/1       361                485    -124
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              4.6
RESULTANT WIND SPEED/DIRECTION   1/250
HIGHEST WIND SPEED/DIRECTION    35/290    DATE  11/11
HIGHEST GUST SPEED/DIRECTION    48/280    DATE  11/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.17
NUMBER OF DAYS FAIR           24
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     56

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW                2     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      2
HAZE                      2

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

LOOKING AHEAD TO DECEMBER 2023...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 37 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 14 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 32
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 9. THE AVERAGE MONTHLY
PRECIPITATION IS 0.63 INCHES. THE AVERAGE SNOWFALL IS 9.3 INCHES.

$$


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